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Why doesn't <select> fill onLoad?

I have this situation.

HTML:

<body onLoad="chk_models();">

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<div class="row">
			<div class="col-sm-3 col-xs-3"><div style="padding-left:5px;"><u>Select Brand/Model</u></div></div>
			<div class="col-sm-3 col-xs-3">				<select name="ctbrand" onChange="get_mods();">
					<option value="">-- Select Brand --</option>
					<option value="BAC" >BAC</option>
					<option value="EVAPCO" selected>EVAPCO</option>
					<option value="SPX/MARLEY" >SPX/MARLEY</option>
					<option value="Other" >Other</option>
				</select>
				
			</div>
			<div class="col-sm-1 col-xs-1">&nbsp;</div>

			<div class="col-sm-3 col-xs-3">				<select name="ctmodel" id="ctmodel" onChange="get_dims();">
		<option value="">-- Select Model --</option>	
		</select><br><span style="visibility:hidden;"><input type="text" name="bother" size="14" id="bother"></span>
				
			</div>
		</div>

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Javascript:

function chk_models() {
	if (document.st.ctbrand.value != "") {
		get_mods();
	}
}

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function get_mods() {
	if (document.st.ctbrand.value == "Other") {
		document.getElementById("ctmodel").style.visibility = "hidden";
		document.getElementById("bother").style.visibility = "visible";
	} else {	
		document.getElementById("ctmodel").style.visibility = "visible";
		document.getElementById("bother").style.visibility = "hidden";
		modeld = document.getElementById('ctmodel');
		removeOptions(modeld);
		sbrand = document.st.ctbrand.value;
		var opt = document.createElement('option');
		opt.value = "";
		opt.innerHTML = "-- Select Model --";
		modeld.appendChild(opt);
		for (var i = 0; i<=nr; i++){
			if (brand[i] == sbrand) {
				var opt = document.createElement('option');
				opt.value = model[i];
				opt.innerHTML = model[i];
				modeld.appendChild(opt);
			}			
		}
		var opt = document.createElement('option');
		opt.value = "Other";
		opt.innerHTML = "Other";
		modeld.appendChild(opt);
	}	
}

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When page displays in browser, only the value "Other" appears in the ctmodel select.

Since the value of ctbrand is NOT other, why does this happen?

Thanks

Leonidas Dosas

Richard you have multiple syntactical errors in your code.I debug your javascript code until one line but you must define what are some variables that you are using as I show you below. I post the code as I debug it and the image with red circle variables that you haven't define these yet:

  <!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>	</title>
</head>
<body onLoad="chk_models();">
	<div class="row">
			<div class="col-sm-3 col-xs-3"><div style="padding-left:5px;"><u>Select Brand/Model</u></div></div>
			<div class="col-sm-3 col-xs-3">				
			<select name="ctbrand" id="ctbrand" onChange="get_mods();">
					<option value="">-- Select Brand --</option>
					<option value="BAC" >BAC</option>
					<option value="EVAPCO" selected>EVAPCO</option>
					<option value="SPX/MARLEY" >SPX/MARLEY</option>
					<option value="Other" >Other</option>
				</select>
				
			</div>
			<div class="col-sm-1 col-xs-1">&nbsp;</div>

			<div class="col-sm-3 col-xs-3">				
			<select name="ctmodel" id="ctmodel" onChange="get_dims();">
		<option value="">-- Select Model --</option>	
		</select><br><span style="visibility:hidden;"><input type="text" name="bother" size="14" id="bother"></span>
				
			</div>
		</div>
		<script>
		var ctbrand=document.getElementById('ctbrand');
		  function chk_models() {
	            if (ctbrand.value != "") {
		            get_mods();
	            }
              }
			  
			  
			function get_mods() {
			
	if (ctbrand.value == "Other") {
		document.getElementById("ctmodel").style.visibility = "hidden";
		document.getElementById("bother").style.visibility = "visible";
	} else {	
		document.getElementById("ctmodel").style.visibility = "visible";
		document.getElementById("bother").style.visibility = "hidden";
		modeld = document.getElementById('ctmodel');
		ctmodel.remove();		
		sbrand =ctbrand.value;
		var opt = document.createElement('option');
		opt.value = "";
		opt.innerHTML = "-- Select Model --";
		modeld.appendChild(opt);
		for (var i = 0; i<=nr; i++){
			if (brand[i] == sbrand) {
				var opt = document.createElement('option');
				opt.value = model[i];
				opt.innerHTML = model[i];
				modeld.appendChild(opt);
			}			
		}
		var opt = document.createElement('option');
		opt.value = "Other";
		opt.innerHTML = "Other";
		modeld.appendChild(opt);
	}	
}  
		</script>
</body>
</html>

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Richard Korts

ASKER

Sorry, I forgot to include all the code:

<script type="text/javascript">
window.onload = function () {
   set_pointers();
};
brand = new Array();
model = new Array();
leng = new Array();
wid = new Array();
dpt = new Array();
smodel = "<? print $_SESSION['ctmodel']; ?>";
nr = <? print $nr; ?>;
<? for ($i = 0; $i < $nr; $i++) { 
	$m = mysqli_fetch_array($res,MYSQLI_ASSOC);?>
	brand[<? print $i; ?>] = "<? print $m['Brand']; ?>";
	model[<? print $i; ?>] = "<? print $m['Model']; ?>";
	leng[<? print $i; ?>] = "<? print $m['Length']; ?>";
	wid[<? print $i; ?>] = "<? print $m['Width']; ?>";
	dpt[<? print $i; ?>] = "<? print $m['Depth']; ?>";
<? } ?>

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This code occurs right after (as you can see) the <script type="text/javascript">

If you are not familiar with php, these values are loaded from a database using php.

If necessary, I can show you the source after php translation.

Thanks

ASKER CERTIFIED SOLUTION

Leonidas Dosas

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Richard Korts

ASKER

I could not solve it this way, I tried another, it worked.

Points awarded for effort.

Why doesn't &lt;select&gt; fill onLoad?

Why doesn't <select> fill onLoad?